The catalog for test strips we have split into two parts.

Photometer Tests: For this test a photometer is required for reading.
Visual Tests: This test come with a colour chart or a counting aid. No photometer is needed to get a reading.

A small tip: Behind the tags you find not oly related tests and devices. You get there also a description what this tests indicates.
One by one we are adding there examples for different industries, businesses and applications showing which benefit you have knowing the test result.